I am rather new to the whole billing/invoicing procedure. I was just wondering how everyone else does it. I was thinking of mailing out the invoices on the 1st of every month and are due by the 15th for that months services, what do you think. This way I only mow twice and the checks should be coming in, just in case their is a customer who does not pay I only mowed twice and am not out of that much money. What do you guys think?